References
- “Calibration of Camera Shutters with the Cathode-ray Oscillograph,” T. H. Bullock, Electronice (Jul. 1943), p. 106.
- “Instrument for Investigating the Operation of Camera Shutters”. D. R. Dighton and H. M. Ross, Photographic journal, Section B, 86B, (1946), p. 110.
- “A Shutter Tester Using a Photo-Electric Integrator,” R. J. Hercock and D. M. Nenle. Jour. Brit. I.R.E., 15 (1955), p. 565.